[PATCH] D39184: CodeGen: Fix invalid bitcast in partial initialization of automatic arrary variable

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.

https://reviews.llvm.org/D39184

Files:
  lib/CodeGen/CGDecl.cpp
  test/CodeGenOpenCL/amdgcn-automatic-variable.cl


Index: test/CodeGenOpenCL/amdgcn-automatic-variable.cl
===================================================================
--- test/CodeGenOpenCL/amdgcn-automatic-variable.cl
+++ test/CodeGenOpenCL/amdgcn-automatic-variable.cl
@@ -58,3 +58,11 @@
   const int lvc = 4;
   lv1 = lvc;
 }
+
+// CHECK-LABEL: define void @func3()
+// CHECK: %a = alloca [16 x [1 x float]], align 4, addrspace(5)
+// CHECK: %[[CAST:.+]] = bitcast [16 x [1 x float]] addrspace(5)* %a to i8 
addrspace(5)*
+// CHECK: call void @llvm.memset.p5i8.i64(i8 addrspace(5)* %[[CAST]], i8 0, 
i64 64, i32 4, i1 false)
+void func3(void) {
+  float a[16][1] = {{0.}};
+}
Index: lib/CodeGen/CGDecl.cpp
===================================================================
--- lib/CodeGen/CGDecl.cpp
+++ lib/CodeGen/CGDecl.cpp
@@ -1266,7 +1266,7 @@
     llvm::ConstantInt::get(IntPtrTy,
                            
getContext().getTypeSizeInChars(type).getQuantity());
 
-  llvm::Type *BP = Int8PtrTy;
+  llvm::Type *BP = AllocaInt8PtrTy;
   if (Loc.getType() != BP)
     Loc = Builder.CreateBitCast(Loc, BP);
 



Index: test/CodeGenOpenCL/amdgcn-automatic-variable.cl
===================================================================
--- test/CodeGenOpenCL/amdgcn-automatic-variable.cl
+++ test/CodeGenOpenCL/amdgcn-automatic-variable.cl
@@ -58,3 +58,11 @@
   const int lvc = 4;
   lv1 = lvc;
 }
+
+// CHECK-LABEL: define void @func3()
+// CHECK: %a = alloca [16 x [1 x float]], align 4, addrspace(5)
+// CHECK: %[[CAST:.+]] = bitcast [16 x [1 x float]] addrspace(5)* %a to i8 addrspace(5)*
+// CHECK: call void @llvm.memset.p5i8.i64(i8 addrspace(5)* %[[CAST]], i8 0, i64 64, i32 4, i1 false)
+void func3(void) {
+  float a[16][1] = {{0.}};
+}
Index: lib/CodeGen/CGDecl.cpp
===================================================================
--- lib/CodeGen/CGDecl.cpp
+++ lib/CodeGen/CGDecl.cpp
@@ -1266,7 +1266,7 @@
     llvm::ConstantInt::get(IntPtrTy,
                            getContext().getTypeSizeInChars(type).getQuantity());
 
-  llvm::Type *BP = Int8PtrTy;
+  llvm::Type *BP = AllocaInt8PtrTy;
   if (Loc.getType() != BP)
     Loc = Builder.CreateBitCast(Loc, BP);
 

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